Overview Of Wireless Standards, Wireless Ethernet

TANDBERG

TANDBERG and Wireless LANs

1. Overview Of Wireless Standards

1.1 802.11 Wireless Ethernet

Ethernet was pioneered by Xerox in the 1970’s and was in fact a registered trademark of Xerox Corporation. After further development, the technology was improved and became known as Ethernet II. Xerox, with the help from Digital and Intel began establishing and publishing the standards. Realizing the international community would not recognize the standard, IEEE was charged with formalizing the standard along with other LAN technologies. The 802 committee was assembled to investigate Ethernet, Token Ring, Fiber Optic, and other LAN technology.

1.1.1 802.11a

The 802.11a specification applies to wireless ATM systems and is primarily used in access hubs. This specification operates at 5GHz and 6GHz. By using a modulation scheme of orthogonal frequency division multiplexing (OFDM), 802.11a can achieve speeds up to 54Mbps. However, speeds of 6Mbps, 12Mbps and 24Mbps are more common.

1.1.2 802.11b

The 802.11b specification, also known as Wi-Fi, uses complementary code keying (CCK) phase-shift keying (PSK) instead of the traditional phase-shift keying (PSK) used in 802.11. The use of CCK allows for higher data speeds and less interference to multipath-propaga tion interference. 802.11b operates at 2.4GHz and allows for speeds up to 11Mbps.

1.1.3 802.11g

The 802.11g specification allows for speeds up to 54Mbps over short distances. The 802.11g standard also operates at 2.4GHz and is compatible with 802.11b.

1.2 BlueTooth

BlueTooth is another wireless standard named for the 10th Century Viking king Harald Blåtand of Denmark. The Bluetooth wireless specification defines a low-power, low-cost technology that provides a standardized platform for eliminating cables between mobile devices and facilitating connections between products. Bluetooth operates at the unlicensed 2.4GHz frequency. The standard uses a spread spectrum, frequency hopping, full-duplex signal at up to 1600 hops/sec. The signal hops among 79 frequencies at 1 MHz intervals to give a high degree of interference immunity.

D12809 specifications

The TANDBERG D12809 represents a cutting-edge solution in the realm of video conferencing and telecommunication technology. TANDBERG, known for its commitment to delivering high-quality audio and video integration, has produced the D12809 to meet the growing demands of modern communication.

One of the main features of the D12809 is its exceptional video quality. The device supports high-definition video up to 1080p, ensuring that users experience clear and sharp visuals during their calls. This level of clarity is particularly important in professional settings where visual cues and presentations are crucial for effective communication.

Audio quality is another critical aspect of the D12809. It employs advanced audio processing technologies that minimize background noise and echo, providing crystal-clear sound during conversations. This is achieved through the implementation of high-fidelity microphones and speakers designed to capture and reproduce audio with remarkable accuracy.

The D12809 is characterized by its user-friendly interface, which simplifies the process of connecting and managing video conferences. The intuitive controls enable users to initiate calls quickly, adjust settings on-the-fly, and share content seamlessly. This ease of use contributes to enhanced productivity, as users spend less time troubleshooting and more time focused on their objectives.

Connectivity is another significant characteristic of the TANDBERG D12809. It supports a variety of connection options, including HDMI, USB, and Ethernet, allowing for flexible integration with existing infrastructure. This versatility means that organizations can easily incorporate the device into their current setups, making it a cost-effective addition.

Moreover, the D12809 is equipped with advanced security features to ensure that sensitive communications remain private and protected. Encryption protocols safeguard data transmissions, which is particularly important for businesses dealing with confidential information.

In addition to these features, the D12809 is designed for scalability. Organizations can easily expand their video conferencing capabilities by adding more units, ensuring that as the business grows, its communication needs can be met without significant reinvestment.

Overall, the TANDBERG D12809 sets a new standard for video conferencing technology, integrating superior audio and video quality, user-friendly interfaces, and robust connectivity options. Its features and characteristics make it a valuable investment for businesses aiming to enhance communication, collaboration, and productivity in today's dynamic work environments.